The Gulf of Mexico’s capacity to recover from previous environmental assaults — especially the 1979 Ixtoc explosion — provides encouragement about the prospects for its post-Deepwater future. But scientists remain worried about the BP spill’s long-term effects on the health of the Gulf and its sea life.

The oil slick spreading across the Gulf of Mexico has shattered the notion that offshore drilling had become safe. A close look at the accident shows that lax federal oversight, complacency by BP and the other companies involved, and the complexities of drilling a mile deep all combined to create the perfect environmental storm.

McQuaid notes:

“The Deepwater Horizon disaster is a classic “low probability, high impact event” — the kind we’ve seen more than our share of recently, including space shuttle disasters, 9/11, and Hurricane Katrina. And if there’s a single lesson from those disparate catastrophes, it’s that pre-disaster assumptions tend to be dramatically off-base, and the worst-case scenarios downplayed or ignored. The Gulf spill is no exception.

McQuaid addresses the issue of risk in

Andrew Hopkins, a sociology professor at the Australian National University and an expert on industrial accidents, wrote a book called Failure to Learn about a massive explosion at a BP refinery in Texas City in 2005 that killed 15 people. He says that disaster has several possible insights for the oil spill: one was that BP and other corporations sometimes marginalize their health, safety, and environmental departments. “The crucial voice for safety in Texas City was shielded from the site manager, and the very senior agency people in the BP corporate head office in London had no role in ensuring safety at the site level,” he said. “The organizational structures disempowered the voices for safety and I think you’ve got the same thing here” in the Gulf spill.

But the more profound problem is a failure to put risks in perspective. BP and other companies tend to measure safety and environmental compliance on a day-to-day, checklist basis, to the point of basing executive bonuses on those metrics. But even if worker accident rates fall to zero, that may reveal nothing about the risk of a major disaster. “These things we are talking about are risks that won’t show up this year, next year — it may be 10 years down the road before you see one of these big blowouts or refinery accidents,” Hopkins said. “This same thing happened in the global financial crisis. Bankers were paid big bonuses for risks taken this year or next year, but the real risks came home to roost years later.”

That assumption — that catastrophic risks were so unlikely they were unworthy of serious attention — appears to have driven a lot of the government decision-making on drilling as well. The Minerals Management Service, a division of the Interior Department, oversees drilling on the Outer Continental Shelf. Since the 1980s, the MMS has routinely granted a blanket exemption from doing a comprehensive environmental impact statement to individual drilling operations, according to Holly Doremus, a professor of environmental law at Berkeley. The Washington Post and the Associated Press reported last week that BP’s Deepwater Horizon lease received that exemption (called a “categorical exclusion”) last year. It was based on several analyses that downplayed the risks of a major oil spill. One, published in 2007, estimated the “most likely size” of an offshore spill at 4,600 barrels. NOAA’s current, conservative estimate of the Gulf spill put its total at more than 80,000 barrels, increasing at a rate of 5,000 per day.

Of course, “Energy companies have aggressively lobbied to avoid formally analyzing worst-case scenarios since the Carter administration first required them in instances where there was uncertainty about the risk of disaster….”

So, will we have learned?

Interviews

The images of pelicans and other Gulf of Mexico seabirds drenched in oil have stirred sadness and outrage around the world. But, says conservationist Melanie Driscoll, the unseen effects are probably far greater, with some birds perishing out of sight, far from shore, and others facing spill-related declines in the fish on which they depend.

The site integrates the latest data the federal responders have about the oil spill’s trajectory with fishery area closures, wildlife data and place-based Gulf Coast resources — such as pinpointed locations of oiled shoreline and current positions of deployed research ships — into one customizable interactive map.

NYTimes Map – Looks like a very comprehensive site that includes maps of where oil is and where oil has made landfall along with other information about efforts to stop the leak, effects on wildlife, and more.

Unified Command for the BP Oil Spill

Includes a collection of news media sources, government sources, Congressional hearings, commercial sources, research and experts, mapping and infographics, and other sites (such as the Earth Portal Deepwater Horizon Oil Spill page).